Automobile cut-out.



R. T. WHIPPLE.

AUTOMOBILE CUT-OUT. APPLICATION FILED JULY 15, 1912.

Patented Oct. '7, 1913.

RAYMOND T. WHIPPLE, OF SAN JOSE, CALIFORNIA.

AUTOMOBILE GUT-OUT.

Specification of Letters Patent.

Patented (let. *7, 1913.

Application filed July 15, 1912. Serial No. 709,500.

To all whom it may concern Be it known that I, RAYMOND T. WHIP- PLE, a citizen of the United States, residing at San Jose, in the county of Santa Clara, State of Californiafhave invented certain new and useful Improvements in Automobile Cut-Outs; and I do hereby declare the following to be a full, clear, and exact de scription of the invention, such as will enable others skilled in the art to which it appertains to make and use the same. 7

This invention relates to automobile cutouts of that general class to cut out the dis charge from the engine in advance of the mutiier to afiord a free discharge.

An object of the present invention is to provide a cut-out in which the valve may be held open at any desired position without keeping the foot upon the valve actuating push rod.

A further object of the invention is to provide a cut-out in which the valve may be quickly closed by a simple quick depression of the push rod, and may be opened to any desired degree by a gradual pressure upon the push rod. 7

A further object of the invention is to provide an extremely simple device of this character which will be attached only to the exhaust pipe in advance of the mufller, and will be composed of a few number of parts that will not easily get out of order.

WVith the above objects in view the invention consists of certain novel details of construction and combination of parts hereinafter fully described and claimed, it being understood that various modifications may be made within the scope of the appended claim.

Figure 1 is a side elevation of the device. Fig. 2 is a rear elevation of the device with part-s broken away. Fig. 3 is a cross sectional view taken on the line 33 Fig. 2.

Referring now to the drawings in which like characters of reference designate similar parts, 10 designates an exhaust pipe leading from the engine to the muffler, the exhaust pipe being provided in advance of the muflier with an opening 13 to permit of a free discharge.

The cut-out comprises a tubular body 14 adapted to be applied to the exhaust pipe at and conduct the dicharge from the opening 13, the body being provided with lugs 15. A cap 16 is provided for clamping the body to the exhaust pipe, the cap engaging the opposite side of the exhaust pipe from the body and being provided with lugs 17 through which and the lugs 15 of the body bolts 18 are passed.

A disk valve 19 is mounted in the bore of the tubular body near the discharge end thereof, the valve being equipped with a stem 20 in the nature of a cylindrical pin having a longitudinal saw kerf within which the disk valve is confined by cotter pins 21, the ends of the pinsbeing journaled for r0- tation in openings formed in opposite sides of the body, and one of the ends projecting outwardly through the body as shown at 22 and being equipped with a crank arm 23.

For opening the valve, which is normally held closed by the pressure of the exhaust, I provide a push rod 24 of the general shape shown, the push rod being in the nature of a flat strap which is slidably secured on a longitudinal rib 25 formed integral with the outer face of the body, the strap being formed with a cylindrical extension 26 which loosely extends through an opening formed for the purpose in a lug 27 carried by the rib. The extension is of sufficient length to extend up through the foot-board of the automobile, and is provided with a helicallifting spring 28, the latter bearing terminally against the lug 27 and against an abutment nut 29 threaded on to the extension.

The push rod is provided on the opposite side of the lug 27 from the spring, with a slot 30 which slidably fits the valve stem extension 22, and the push rod is further equipped with a wrist pin 31 which engages in a slot 32 formed in the crank arm 23 of the stem extension. Upon depression of the push rod against the pressure of its spring, the valve will be opened through the instrumentality of the crank and pin connection between the valve and push rod. Upon the push rod being released the spring 28 will lift the rod and permit of the valve being closed by the pressure of the exhaust coacting with the lifting of the rod.

For holding the push rod depressed to any desired extent and thereby regulating the position of the valve in any intermediate position from completely closed to completely open position, I provide a substantially U-shaped latch 33 the legs of which are pivoted intermediate the ends to a lug 3 1 which extends outwardly from the rib 25 and projects through a slot 35 formed in the push rod. A pivot pin 36 is passed through the free end of the lug and through the legs of the latch to attain this end. The free extremities of the latch legs are thickened as shown at 37 to cause the extremities to gravitate With a resultant rocking inward of the bight 38 of the latch against a series of ratchet teeth 39 formed on the outer face of the push rod. 1

, In normal position the parts are disposed i as shown in Fig. 2 and the valve is closed. To open the valve the operator depresses the push rod with his foot until several teeth of the push rod have advanced beyond the big/ht of the latch. The operator may new release his foot and the controlling spring of the push rod tends to lift the push rod I and hold the ratchet teeth in engagement with the bight of the latch. Should the op: erator desire to open the valve farther, he

may do, so by again depressing the push rod, but if; he should desire to close the valve, j .18 may drop his heel suddenly upon the 1 push rod and remove it quickly. The jar is transmitted from the ratchet teeth to the bight of the latch with a resultant rocking of the weighted ends of the latch ends toward the body 10 of the device, the eight- 1 ed legs then serving to hold the latch in this released position until the push rod controlling spring impinges the shoulders 40 of the push rod, at the juncture of the fiattened portion thereof with the cylindrical extension, against the terminal of the latch, whereupon the latch is again rocked to op.

erative position as shown in Fig. 2. V r

3 said push rod, and adaptedto, be disengaged V from said ratchet teeth upon an abrupt de:

pression of said push rod.

In testimony whereof, I affix my signa: ture, in presence of two witnesses.

RAYMOND r. WHIPPLE.

I Witnesses W. 0- S W,

a W. R N-J Copies of this patent may be obtained for five cents: each, by addressing the Commissioner of Eatents, Washington, D. G. 

